/*
 * Copyright (C) 2009 M. Hautle.
 * 
 * This file is part of TrackedBean.
 * 
 * TrackedBean is free software: you can redistribute it and/or modify it under the terms of the GNU Lesser General Public License as published by the Free
 * Software Foundation, either version 3 of the License, or (at your option) any later version.
 * 
 * TrackedBean is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
 * A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more details.
 * 
 * You should have received a copy of the GNU Lesser General Public License along with TrackedBean. If not, see <http://www.gnu.org/licenses/>.
 */
package ch.trackedbean.business;

import ch.msoftch.internal.*;

/**
 * Resolver fetching the value for an given property key.
 * 
 * @author M. Hautle
 */
public interface IPropertyResolver {
    /**
     * Fetches the value of the given bean denoted by the passed property key.
     * 
     * @param <S> The type
     * @param key The property key
     * @param bean The bean from which to fetch the value
     * @param fallback The fallback value
     * @return The fetched value or the fallback
     * @throws TechnicalException If something went wrong
     */
    <S> S get(String key, Object bean, S fallback) throws TechnicalException;

    /**
     * Resolves the given property key to the representing property name/EL expression.
     * 
     * @param key The property key
     * @param type The type for which to fetch the information
     * @return The corresponding property/EL expression
     * @throws TechnicalException If something went wrong
     */
    String getPath(String key, Class type) throws TechnicalException;
}
